Since that .45 Auto shot a perfect score, did he have to keep shooting until he missed the X-ring to set a record?
I looked up NRA bullseye records and it seems the record for 25 yards is something like 100-25X

Also, NRA scores a hit if the bullet hole touches the scoring ring but the muzzleloaders use a "center of the bullet hole" rule. That means the muzzleloader scored a 100-9X